header{
    position: fixed;
    padding: 0 20px ;
    top: 0;
    width: 100%;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: #fff;
    border-bottom: 1px solid #e6e3e3;
    a{
         width: 70px; 
    }
    span{
        width: 70px;
        color: #2561EF;
    }
}
.head{
    margin-top: 50px;
    background-color: #fff;
    display: flex;
    padding: 0 20px;
    align-items: center;
    justify-content: flex-start;
    font-size: 12px;
        img{
            height: 60px;
        }
        p{
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            flex-direction: column;
            span{
                margin: 3px ;
            }
        }
    

}
.main-1,.main-2,.main-3,.main-4{
    background-color: #fff;
    margin-top: 20px;
    padding: 0 20px ;
    h5{
        font-weight: normal;
        padding: 10px 0;
        border-bottom: 1px solid #e5e5e5;
        font-size: 14px;
    }
    li{
        font-size: 12px;
        padding: 10px 0;
        border-bottom: 1px solid #e5e5e5;
        color: #666666;
    }

}